Drawing implement



July 10, 1923. 1,461,335

K.,D. VOSLER DRAWING IMPLEMENT Fild June 25. 1920 I @14mm/tez /M @4% @3913 'SHOM/w13,

KWM

Patented July l0, 1.923.

KENNETH D. VOSLER, OF SOUTH AMBOY, NEW JERSEY.

DRAWING IMPLEMENT.'

Application led June 23, 1920. Serial No. 391,093.

To all whom t may concern? Be it known that I, KENNETH D. VosLnR, a citizen of the United States, and a resident of South Amboy, county of Middlesex, and State of New Jersey, have invented certain new and useful Improvements in Drawing Implements, of which the following, together with the accompanying drawing, is the specification.

My invention relates to improvements in drawing implements, and its obj ect is to provide a simple device for facilitating the work of the draftsman. More specically its object is to provide a ruling device, to be used in conjunction with ka T-squareor other straight edge in a manner similar to that in which triangles are used,` for ruling such lines as represent screw threads. Another object is to provide a single instrument by means of which lines may be ruled in certain denite unlike 'directions without reversing the instrument or altering its'angular relation to the straight edge.

These and other objects of the invention will appear in the `following speciiication, in which I will describe the invention, the novel features of which will be set forth in appended claims. l

The drawing herewith is a plan view of a simple embodimentot this invention. vThis implement is a thin flat quintagonal device of any desired stii material, such for eX- ample as Celluloid, wood, hard rubber or metal. The side A-B is the base. The angles F and G between this base and the sides A-E and B-C are each 60. These sides converge from the base toward each other and are preferably of equal length. The angles H and I between the sides AE, E-D and B-C, C-D are each 150, so that the sides E .D and CD meet at an angle J of 120.

The inner part of the body of this implement may be cut away as shown at l0 and the inner edges thus formed may be undercut as at 11, if desired, to facilitate its manipulation.

This device is intended to be used with its base A-B on a horizontal T-square or a horizontally guided straight edge. Its other edges are used for ruling. With it ythe lines which represent the threads of either horizontally or vertically disposed screws may be drawn without inverting the implement or changing its angular relation to the T- square or straight edge. In fact, no other movements are required than ylateral move-j ments of the implement or the usual vertical' adjustment of the T-square or straight edge.`

For this use it is a time and labor saver.

This implement may be used also to advantage to draw hexagonal heads for bolts j j drawing cross section lines which illustrate f adjacent surfaces giving cross section linesA at right angles to each other in any view, without turning the triangle. isometric views both isometric axes and all required lines may be drawn without turn- In making ing the implement iromits position on thev T-square or straight edge. In fact, this im-v plement may be used to advantage in any case where thirty or sixty degree lines are f u'sed'intermittently or in opposite relations to horizontal or vertical lines, and will `eliminate the time and labor consumed in imanipulating an ordinary triangle.

I have described some of the usual and intended uses of this device but do not vlimit v the use of thev implement to T-'square and straight edges held in horizontal positions nor to the use of this device with its base A -B upon a guiding straight edge' as it is obvious that thel guiding edge may be in any desired position, and Vsituations sometimes arise when it is desirable to rest another side than the base` upon the guiding edge.

What Iclaim is: Y. l. A drawing implement comprising a thin flat body having a comparatively long' straight base, two straight sides converging from the ends of the base at 60 angles thereto, and two other straight sides extending at 150 angles from the ends of said first mentionecl sides remote from the base rand meeting in a 120o angle.

2. A drawing implement comprising a thin flat body having a eomparativelj)T long 5 straight base, two straight sides of equal length converging from the ends of the base at 60O angles thereto, and tWo other straight sides` extending at 150o angles from the ends of said first mentioned sides remote from the base and meeting opposite the center of the hase in a 120o angle.

In Witness whereof7 I hereunto set nl y hand this 19th day of June, 1920.

KENNETH D. VOSLER. 

